A Two-Proportions $\mathrm { z }$ -Test Is to Be Performed $\mathrm { H } _ { 0 } : \mathrm { p } _ { 1 } = \mathrm { p } _ { 2 }$

question 2

Multiple Choice

A two-proportions $\mathrm { z }$ -test is to be performed. The null hypothesis is $\mathrm { H } _ { 0 } : \mathrm { p } _ { 1 } = \mathrm { p } _ { 2 }$ . For the given sample data compute the value of the test statistic.
-A random sampling of sixty pitchers from the National League and fifty-two pitchers from the American League showed that 17 National and 6 American League pitchers had E.R.A's below

• A)3.5. z = 2.194
• B)z = 24.274
• C)z = 2.852
• D)z = 288.178

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Definitions:

Parasympathetic

refers to the part of the autonomic nervous system responsible for rest and digestion, countering the fight-or-flight responses of the sympathetic system.

Nervous System

The network of nerve cells and fibers that transmits nerve impulses between parts of the body, regulating and coordinating bodily functions.

Holmes and Rahe

Psychologists who developed the Social Readjustment Rating Scale (SRRS), a scale that measures stress levels in life changes to predict illness risk.

Significant Stressor

An event or situation that causes a substantial level of stress, significantly impacting an individual's psychological or physical well-being.